/* Reset e estilos base */
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #ff6c03;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
            --text-color: #333;
            --border-radius: 5px;
            --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            --transition: all 0.3s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: #f9f9f9;
            padding: 0;
            margin: 0;
        }

        /* Layout */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            background-color: var(--primary-color);
            color: white;
            padding: 2rem 0;
            text-align: center;
            margin-bottom: 2rem;
            box-shadow: var(--box-shadow);
        }

        header h1 {
            font-size: 2.2rem;
            margin-bottom: 0.5rem;
        }

        .header-meta {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin-top: 1rem;
            font-size: 0.9rem;
            opacity: 0.9;
        }

        main {
            padding-bottom: 3rem;
        }

        section {
            background-color: white;
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 2rem;
            margin-bottom: 2rem;
        }

        h2 {
            color: var(--primary-color);
            margin-bottom: 1.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--secondary-color);
        }

        h3 {
            color: var(--secondary-color);
            margin: 1.5rem 0 1rem;
        }

        p, ul, ol {
            margin-bottom: 1rem;
        }

        ul, ol {
            padding-left: 1.5rem;
        }

        li {
            margin-bottom: 0.5rem;
        }

        /* Componentes específicos */
        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent, var(--secondary-color), transparent);
            margin: 2rem 0;
        }

        .tool-card {
            border-left: 4px solid var(--secondary-color);
            padding-left: 1rem;
            margin-bottom: 2rem;
        }

        .tool-name {
            font-weight: bold;
            color: var(--accent-color);
            margin-bottom: 0.5rem;
        }

        .tool-focus {
            font-style: italic;
            margin-bottom: 1rem;
        }

        .highlight-box {
            background-color: var(--light-color);
            border-left: 4px solid var(--accent-color);
            padding: 1rem;
            margin: 1.5rem 0;
        }

        .conclusion-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }

        .conclusion-item {
            background-color: var(--light-color);
            padding: 1.5rem;
            border-radius: var(--border-radius);
            transition: var(--transition);
        }

        .conclusion-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }

        .conclusion-item h4 {
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }

        .attachments {
            margin-top: 2rem;
        }

        .attachment-item {
            margin-bottom: 1rem;
        }

        .attachment-item a {
            color: var(--secondary-color);
            text-decoration: none;
            transition: var(--transition);
        }

        .attachment-item a:hover {
            color: var(--accent-color);
            text-decoration: underline;
        }

        footer {
            background-color: var(--dark-color);
            color: white;
            text-align: center;
            padding: 2rem 0;
            margin-top: 2rem;
        }

        .signature {
            font-style: italic;
            margin-top: 3rem;
            text-align: right;
            padding-right: 2rem;
        }

        /* Responsividade */
        @media (max-width: 768px) {
            header h1 {
                font-size: 1.8rem;
            }

            .header-meta {
                flex-direction: column;
                gap: 0.5rem;
            }

            section {
                padding: 1.5rem;
            }

            .conclusion-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 1.5rem;
            }

            h2 {
                font-size: 1.3rem;
            }

            section {
                padding: 1rem;
            }
        }

        /* Botões e interatividade */
        .btn {
            display: inline-block;
            background-color: var(--secondary-color);
            color: white;
            padding: 0.6rem 1.2rem;
            border-radius: var(--border-radius);
            text-decoration: none;
            transition: var(--transition);
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
        }

        .btn:hover {
            background-color: var(--primary-color);
            transform: translateY(-2px);
        }

        .back-to-top {
            position: fixed;
            bottom: 20px;
            right: 20px;
            background-color: var(--accent-color);
            color: white;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            text-decoration: none;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 100;
        }

        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background-color: var(--primary-color);
        }